Hazardous Materials endorsements are not transferred with your license. You will be required to take the written test on Hazardous Materials to receive the endorsement in Oklahoma. See Endorsements.
Visit a License Office Location where you will take a vision test. You can schedule an appointment online, or walk into a Driver License Location. Many Driver License Locations provide walk-in services. However, most have limited walk-in availability. Therefore, we strongly recommend making an appointment online.
A temporary license will be printed for you at the test site. The official CDL with the added endorsement will be mailed to you within 10-21 days of successfully passing your written test.
You are required to hold a Medical Examiner Certificate (DOT Medical Card) if you operate, and have self-certified as, Non-Exempted Interstate commerce (NI). If you are not sure what your self-certification status is, you can learn more about them here.
No a drive test will not be required to transfer an out-of-state CDL unless it is expired. If you are wanting to transfer a hazardous materials endorsement from another state, you will have to take the written test on Hazardous Materials to transfer that endorsement from another state. You can schedule an appointment here.